Mental Math Worksheet
Recommended for 1st Grade — 5th Grade
Mental Math Worksheet
Name: ____________________Date: ____________
Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.
20 problems
39 − 10 = ______
26 − 10 = ______
85 + 10 = ______
88 + 20 = ______
8 × 10 = ______
38 + 20 = ______
75 − 10 = ______
57 + 10 = ______
14 + 20 = ______
40 + 20 = ______
80 + 20 = ______
70 + 20 = ______
24 − 10 = ______
1 × 10 = ______
54 − 10 = ______
16 + 10 = ______
79 + 10 = ______
78 − 10 = ______
4 × 10 = ______
45 − 10 = ______
